As Gnu says. Been there, done that! At least mine were just safety glasses.
A fishing mate managed to lose his specs over the side, which makes a change from false teeth.

BillD, the washer hides socks between the two drums. Comes from putting a pile of stuff on the top and pushing it down into the inner drum. Odd escapees slip between the drums. You'll find the socks (chewed up) when the serviceman removes them from the pump.